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    Introduction of air filter

    1、 Primary air conditioning filter

    The primary filter is applicable to the primary filter of air conditioning system, mainly used to filter dust particles of more than 5 μ m. The primary filter has four types: plate type, folding type, skeleton type and bag type. The outer frame materials are paper frame, aluminum alloy frame, galvanized iron frame and stainless steel frame. The filter materials are non-woven fabric, nylon mesh, activated carbon filter material, metal mesh, etc. the protective mesh is double-sided plastic spraying square mesh and Double sided galvanized wire mesh. There are six kinds of G series coarse effect air filters: G2, G3, G4, GN (nylon mesh filter), GH (metal mesh filter), GC (active carbon filter).

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    Constituent materials and operating conditions

    1. Frame material: paper frame, aluminum alloy, galvanized plate, stainless steel, ABS plastic
    2. Filter material material: non-woven filter cotton, glass fiber cotton, corrugated aluminum mesh, nylon mesh, etc
    3. Sealant: Polyurethane AB adhesive, hot melt adhesive
    4. Operating temperature and humidity shall not exceed 80 ℃, 80%

     

    Main application

    1. Pre filtration of central air conditioning and central ventilation system
    2. Pre filtration of large air compressor
    3. Clean return air system
    4. Pre filtration of local primary filter

    2、 Special primary filter

    Special industry primary filter is suitable for primary filtration of air conditioning systems such as offshore drilling platform equipment, painting, environmental protection, high-speed rail, fresh air system and ultrasonic cleaning. It is mainly used for filtration of dust particles over 5 μ m. The primary filter has four types: plate type, folding type, framework type and bag type. The outer frame materials include paper frame, aluminum alloy frame, galvanized plate frame, stainless steel frame, and filter materials There are non-woven fabrics, activated carbon particles, activated carbon non-woven fabrics, paint fog felt, stainless steel corrugated mesh, stainless steel wire mesh, composite filter, etc.

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    Constituent materials and operating conditions

    1. Frame material: paper frame, aluminum alloy, galvanized plate, stainless steel, ABS plastic
    2. Filter material: white primary effect filter cotton, activated carbon filter cotton, activated carbon particle paint fog felt, 304 stainless steel corrugated screen, composite filter material, 304 stainless steel wire mesh
    3. Sealant: Polyurethane AB adhesive, hot melt adhesive
    4. Operating temperature and humidity shall not exceed 80C and 80%

    Main application

    1. Large air volume pre filtration of air conditioning purification system for offshore drilling platform equipment
    2. Large air volume pre filtration of air conditioning purification system in painting industry
    3. Pre filtration of air conditioning purification system for environmental protection and formaldehyde removal
    4. Pre filtration of air conditioning purification system for high-speed rail car
    5. Pre filtration of fresh air system and pipeline system
    6. Pre filtration of air conditioning purification system of ultrasonic equipment

     

    3、 Medium efficiency filter

    The medium efficiency filter mainly filters 1-5 μ m particle dust and all kinds of suspended solids, the intermediate filter in the central air conditioning purification system, and the front-end filter of the high efficiency filter, so as to reduce the load of the high efficiency filter and extend its service life.

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    Product features

    1. Can be reused many times
    2. Small resistance, large air volume and large dust capacity
    3. FB (plate type medium efficiency filter), FS (diaphragm type medium efficiency filter), Fv (combined type medium efficiency filter) can be made according to the user's requirements

    Constituent materials and operation conditions

    Frame material: aluminum alloy, stainless steel, bottom zinc plate
    Filter material: new composite non-woven fabric, glass fiber filter material
    Filter material color: F5 (white) 45% (light yellow), F6 (green) 65% (Orange), F7 (pink) 85% (purple)
    Operating temperature and humidity shall not exceed 80 ℃ and 80%

    4、 Sub high efficiency, box type high efficiency filter

    Sub high efficiency and box type high efficiency filter mainly filters 0.3-1 μ m particle dust and various suspended solids, sub high efficiency level filter of central air conditioning purification system, front-end filter of high efficiency filter or super efficiency filter in high clean environment such as microelectronics industry, chip industry and hospital, so as to reduce the load of high efficiency filter and extend the service life of high efficiency filter or super efficiency filter.

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     Product features

    1. Large air volume, small resistance, large dust capacity and long service life
    2. Efficient or super efficient front-end filtration for large air volume air conditioning and ventilation system

    Constituent materials and operating conditions

    Frame material: ABS plastic, aluminum plate, galvanized plate, stainless steel
    Filter material: glass fiber, chemical fiber PP
    Sealant: Polyurethane ab
    Spacer: hot melt adhesive
    Operating temperature and humidity shall not exceed 80 ℃, 80%

    5、 High efficiency filter without partition

    The high efficiency filter without separator is mainly used to filter the air suspension particles below 0.3 μ m, which is suitable for the project of strict one-way flow and high level non one-way flow cleanroom. At present, the class a clean room generally adopts the high-efficiency filter without partition. The FFU is also equipped with the high-efficiency filter without partition. Compared with the high-efficiency filter with partition, under the same air volume, it has the advantages of small volume, light weight, compact structure, reliable performance, easy installation, stable efficiency, even wind speed, etc.; the high-efficiency design without partition can achieve high efficiency with small resistance, thus The operation cost is reduced, especially the designed hot-melt adhesive can ensure the same fold spacing, ensure the better air flow through, achieve high dust volume and extend the service life.

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    Constituent materials and operation conditions

    1. Frame material: aluminum alloy, galvanized plate, stainless steel, ABS plastic
    2. Seal: Polyurethane ab
    3. Separator: hot melt adhesive
    4. Sealing strip: ethyl acetate
    5. Filter material: glass fiber filter paper, PTFE composite filter material
    6. Operating temperature and humidity shall not exceed: 80C, 80%

    Product use

    Applicable occasions: semiconductor manufacturing, intelligent chip, electronics, nuclear power station, national defense facilities, laboratory, laminar flow equipment, automobile manufacturing, medicine and health, food processing, workbench and other occasions requiring high cleanliness.

    6、 High efficiency filter with partition

    High efficiency filter with partition is mainly used to filter air suspended particles below 0.5 μ m, which is suitable for high-level non unidirectional flow projects, end purification of various purification equipment and clean workshops, with high efficiency and low resistance. The uniformity of wind speed is good. The aluminum partition filter in the partition filter is mainly used in the high temperature or high humidity environment. The paper partition filter is used in the ordinary clean environment. The air volume of the partition is relatively large, and the efficiency can only reach high efficiency. It can be used as the high temperature resistant filter. There is no strict requirement for the filter material without the partition, and the partition is rarely used for super efficiency.

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    Constituent materials and operation conditions

    1. Frame material: wooden frame, galvanized plate, aluminum alloy, stainless steel, ABS plastic
    2. Seal: Polyurethane ab
    3. Separator: adhesive paper or aluminum foil
    4. Sealing strip: ethyl acetate
    5. Filter material: glass fiber filter paper, chemical fiber PP filter material (less)
    6. Operating temperature and humidity shall not exceed 80C and 80%

     

    Product use

    Applicable occasions: GMP pharmaceutical, electronic industry, nuclear power station, national defense facilities, laboratory, automobile manufacturing, medicine and health, food processing, workbench and other occasions requiring high cleanliness.

     

    7、 HEPA filter series

    HEPA filter screen series is the main filter screen used by most air purifiers and fresh fans at present. It is mainly used to filter small molecule dust and various suspended solids with a diameter of less than 0.3 μ M. HEPA filter screen is subdivided into G1-G4, f5-f-h10-h14 and u15-u17 according to the current European level. The most common level in air purifiers is grade H, among which grade H13 HEPA filter screen can achieve a total efficiency of 9 9.95%, h14 HEPA filter can just reach 99.995%, the highest purification level of HEPA filter in European standard is u, and the total purification efficiency of U17 HEPA filter can even reach 99.99997%, but because the production cost of u HEPA filter is high, and the production environment is strictly required, there are not many wells in the market. In addition to grade, HEPA screens are made of different materials. Among them, the most common materials are five categories: chemical fiber PP filter material, composite pet filter material, melt blown filter material, polyester non-woven fabric, melt blown composite filter material and glass fiber filter material; five categories of HEPA filter nets with different materials have their own advantages and disadvantages, and their main application fields are also different. Among them, HEPA filter screen with multiple materials is featured by acid and alkali resistance, corrosion resistance, high melting point, stable performance, non-toxic, none Taste, uniform distribution, low resistance, high strength and environmental protection are widely used in air purifier.

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    Product function

    1. Effectively filter PM2.5, pollen, hair and other solids, with a removal rate of 99.99%
    2 can effectively remove formaldehyde, toluene, odor, TVOC and other gaseous pollutants in the air

    Constituent materials

    1. Frame material: paper frame, ABS plastic aluminum alloy, stainless steel
    2. Seal: Polyurethane AB adhesive, hot melt adhesive
    3. Separator: hot melt adhesive
    4. Sealing strip: Foam
    5. Filter material: glass fiber filter material, chemical fiber PP filter material, imported or domestic composite filter material
    6. Operating temperature and humidity shall not exceed 80C and 80%
    The specification and size of HEPA filter screen have no specific definition temporarily, which is generally determined according to the specifications formulated by air purifier and fresh air fan manufacturer.
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